I have a 3 story log home - finished basement, main living area, and loft.
The 3rd level loft area has a bathroom and 2 bedrooms - each of which has a supply and return vent. Heating and cooling these 3 rooms is not a problem. The attic area is entirely over these 3 rooms.
My problem is in the loft area itself. It's basically a 30' x 15' open area with a vaulted ceiling. I have 2 ceiling fans that hang above the main living area on the opposite side of the loft. I also have 2 ceiling fans hanging from the ceiling in the loft. I've tried all of the different combinations of running the fans but I can't keep the loft below 80F in the afternoons in the summer months. There are no supply or return vents in the loft area so I rely on trying to get the cool air from downstairs up to the loft with the ceiling fans.
In the winter it's not a problem as I just throw some wood in the stove and the heat rises up to the loft. It stays nice and warm in the winter.
I was thinking that some type of exhaust fan might help. If I put a regular old attic fan in the attic, would that serve to lower the temperature in the loft? Or would I do better by putting some type of exhaust fan in the loft ceiling rather than the attic?